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| author | bkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-04-15 23:31:04 +0000 |
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| committer | bkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-04-15 23:31:04 +0000 |
| commit | 9798da6283cc37872d357ca124af1c45b1fad41b (patch) | |
| tree | c94eef86e817fe08624a63d5cb7cb20fd9726f61 /libstdc++-v3/doc/html/manual/shared_ptr.html | |
| parent | a2c448455c4ee3e6d436f34e16dd5ddc5b1f0529 (diff) | |
| download | ppe42-gcc-9798da6283cc37872d357ca124af1c45b1fad41b.tar.gz ppe42-gcc-9798da6283cc37872d357ca124af1c45b1fad41b.zip | |
2009-04-15 Benjamin Kosnik <bkoz@redhat.com>
* doc/html: Regenerate.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@146140 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/doc/html/manual/shared_ptr.html')
| -rw-r--r-- | libstdc++-v3/doc/html/manual/shared_ptr.html | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/libstdc++-v3/doc/html/manual/shared_ptr.html b/libstdc++-v3/doc/html/manual/shared_ptr.html index dd7c28dc523..eb95f4b045f 100644 --- a/libstdc++-v3/doc/html/manual/shared_ptr.html +++ b/libstdc++-v3/doc/html/manual/shared_ptr.html @@ -1,6 +1,6 @@ <?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>shared_ptr</title><meta name="generator" content="DocBook XSL Stylesheets V1.74.0" /><meta name="keywords" content=" ISO C++ , shared_ptr " /><meta name="keywords" content=" ISO C++ , library " /><link rel="home" href="../spine.html" title="The GNU C++ Library Documentation" /><link rel="up" href="bk01pt04ch11.html" title="Chapter 11. Memory" /><link rel="prev" href="auto_ptr.html" title="auto_ptr" /><link rel="next" href="bk01pt04ch12.html" title="Chapter 12. Traits" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">shared_ptr</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="auto_ptr.html">Prev</a> </td><th width="60%" align="center">Chapter 11. Memory</th><td width="20%" align="right"> <a accesskey="n" href="bk01pt04ch12.html">Next</a></td></tr></table><hr /></div><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.util.memory.shared_ptr"></a>shared_ptr</h2></div></div></div><p> +<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>shared_ptr</title><meta name="generator" content="DocBook XSL Stylesheets V1.74.0" /><meta name="keywords" content=" ISO C++ , shared_ptr " /><meta name="keywords" content=" ISO C++ , library " /><link rel="home" href="../spine.html" title="The GNU C++ Library Documentation" /><link rel="up" href="memory.html" title="Chapter 11. Memory" /><link rel="prev" href="auto_ptr.html" title="auto_ptr" /><link rel="next" href="traits.html" title="Chapter 12. Traits" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">shared_ptr</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="auto_ptr.html">Prev</a> </td><th width="60%" align="center">Chapter 11. Memory</th><td width="20%" align="right"> <a accesskey="n" href="traits.html">Next</a></td></tr></table><hr /></div><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.util.memory.shared_ptr"></a>shared_ptr</h2></div></div></div><p> The shared_ptr class template stores a pointer, usually obtained via new, and implements shared ownership semantics. </p><div class="sect2" lang="en" xml:lang="en"><div class="titlepage"><div><div><h3 class="title"><a id="shared_ptr.req"></a>Requirements</h3></div></div></div><p> @@ -29,7 +29,7 @@ drops to zero. Derived classes override those functions to destroy resources in a context where the correct dynamic type is known. This is an application of the technique known as type erasure. - </p></div><div class="sect2" lang="en" xml:lang="en"><div class="titlepage"><div><div><h3 class="title"><a id="shared_ptr.impl"></a>Implementation</h3></div></div></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id512206"></a>Class Hierarchy</h4></div></div></div><p> + </p></div><div class="sect2" lang="en" xml:lang="en"><div class="titlepage"><div><div><h3 class="title"><a id="shared_ptr.impl"></a>Implementation</h3></div></div></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id505413"></a>Class Hierarchy</h4></div></div></div><p> A <code class="classname">shared_ptr<T></code> contains a pointer of type <span class="type">T*</span> and an object of type <code class="classname">__shared_count</code>. The shared_count contains a @@ -71,7 +71,7 @@ be forwarded to <span class="type">Tp</span>'s constructor. Unlike the other <code class="classname">_Sp_counted_*</code> classes, this one is parameterized on the type of object, not the type of pointer; this is purely a convenience that simplifies the implementation slightly. - </p></dd></dl></div></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id530740"></a>Thread Safety</h4></div></div></div><p> + </p></dd></dl></div></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id484677"></a>Thread Safety</h4></div></div></div><p> The interface of <code class="classname">tr1::shared_ptr</code> was extended for C++0x with support for rvalue-references and the other features from N2351. As with other libstdc++ headers shared by TR1 and C++0x, @@ -129,7 +129,7 @@ compiler, standard library, platform etc. For the version of shared_ptr in libstdc++ the compiler and library are fixed, which makes things much simpler: we have an atomic CAS or we don't, see Lock Policy below for details. -</p></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id455390"></a>Selecting Lock Policy</h4></div></div></div><p> +</p></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id541215"></a>Selecting Lock Policy</h4></div></div></div><p> </p><p> There is a single <code class="classname">_Sp_counted_base</code> class, which is a template parameterized on the enum @@ -170,7 +170,7 @@ used when libstdc++ is built without <code class="literal">--enable-threads</cod <code class="filename">ext/atomicity.h</code>, which detect if the program is multi-threaded. If only one thread of execution exists in the program then less expensive non-atomic operations are used. - </p></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id512523"></a>Dual C++0x and TR1 Implementation</h4></div></div></div><p> + </p></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id574076"></a>Dual C++0x and TR1 Implementation</h4></div></div></div><p> The classes derived from <code class="classname">_Sp_counted_base</code> (see Class Hierarchy below) and <code class="classname">__shared_count</code> are implemented separately for C++0x and TR1, in <code class="filename">bits/boost_sp_shared_count.h</code> and @@ -181,7 +181,7 @@ The TR1 implementation is considered relatively stable, so is unlikely to change unless bug fixes require it. If the code that is common to both C++0x and TR1 modes needs to diverge further then it might be necessary to duplicate additional classes and only make changes to the C++0x versions. -</p></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id480144"></a>Related functions and classes</h4></div></div></div><div class="variablelist"><dl><dt><span class="term"><code class="code">dynamic_pointer_cast</code>, <code class="code">static_pointer_cast</code>, +</p></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id478669"></a>Related functions and classes</h4></div></div></div><div class="variablelist"><dl><dt><span class="term"><code class="code">dynamic_pointer_cast</code>, <code class="code">static_pointer_cast</code>, <code class="code">const_pointer_cast</code></span></dt><dd><p> As noted in N2351, these functions can be implemented non-intrusively using the alias constructor. However the aliasing constructor is only available @@ -214,10 +214,10 @@ is called. Users should not try to use this. As well as the extra constructors, this implementation also needs some members of _Sp_counted_deleter to be protected where they could otherwise be private. - </p></dd></dl></div></div></div><div class="sect2" lang="en" xml:lang="en"><div class="titlepage"><div><div><h3 class="title"><a id="shared_ptr.using"></a>Use</h3></div></div></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id536250"></a>Examples</h4></div></div></div><p> + </p></dd></dl></div></div></div><div class="sect2" lang="en" xml:lang="en"><div class="titlepage"><div><div><h3 class="title"><a id="shared_ptr.using"></a>Use</h3></div></div></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id484864"></a>Examples</h4></div></div></div><p> Examples of use can be found in the testsuite, under <code class="filename">testsuite/tr1/2_general_utilities/shared_ptr</code>. - </p></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id536266"></a>Unresolved Issues</h4></div></div></div><p> + </p></div><div class="sect3" lang="en" xml:lang="en"><div class="titlepage"><div><div><h4 class="title"><a id="id532795"></a>Unresolved Issues</h4></div></div></div><p> The resolution to C++ Standard Library issue <a class="ulink" href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-active.html#674" target="_top">674</a>, "shared_ptr interface changes for consistency with N1856" will need to be implemented after it is accepted into the working @@ -265,7 +265,7 @@ be private. code to work with, Peter Dimov in particular for his help and invaluable advice on thread safety. Phillip Jordan and Paolo Carlini for the lock policy implementation. - </p></div><div class="bibliography"><div class="titlepage"><div><div><h3 class="title"><a id="shared_ptr.biblio"></a>Bibliography</h3></div></div></div><div class="biblioentry"><a id="id458468"></a><p>[<abbr class="abbrev"> + </p></div><div class="bibliography"><div class="titlepage"><div><div><h3 class="title"><a id="shared_ptr.biblio"></a>Bibliography</h3></div></div></div><div class="biblioentry"><a id="id559812"></a><p>[<abbr class="abbrev"> n2351 </abbr>] <span class="title"><i> Improving shared_ptr for C++0x, Revision 2 @@ -274,7 +274,7 @@ be private. . </span><span class="biblioid"> <a class="ulink" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2351.htm" target="_top"> </a> - . </span></p></div><div class="biblioentry"><a id="id414390"></a><p>[<abbr class="abbrev"> + . </span></p></div><div class="biblioentry"><a id="id478322"></a><p>[<abbr class="abbrev"> n2456 </abbr>] <span class="title"><i> C++ Standard Library Active Issues List (Revision R52) @@ -283,7 +283,7 @@ be private. . </span><span class="biblioid"> <a class="ulink" href="http://open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2456.html" target="_top"> </a> - . </span></p></div><div class="biblioentry"><a id="id513371"></a><p>[<abbr class="abbrev"> + . </span></p></div><div class="biblioentry"><a id="id496435"></a><p>[<abbr class="abbrev"> n2461 </abbr>] <span class="title"><i> Working Draft, Standard for Programming Language C++ @@ -292,7 +292,7 @@ be private. . </span><span class="biblioid"> <a class="ulink" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2461.pdf" target="_top"> </a> - . </span></p></div><div class="biblioentry"><a id="id492282"></a><p>[<abbr class="abbrev"> + . </span></p></div><div class="biblioentry"><a id="id496459"></a><p>[<abbr class="abbrev"> boostshared_ptr </abbr>] <span class="title"><i> Boost C++ Libraries documentation - shared_ptr class template @@ -301,4 +301,4 @@ be private. . </span><span class="biblioid"> <a class="ulink" href="http://boost.org/libs/smart_ptr/shared_ptr.htm" target="_top">shared_ptr </a> - . </span></p></div></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="auto_ptr.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="bk01pt04ch11.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="bk01pt04ch12.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">auto_ptr </td><td width="20%" align="center"><a accesskey="h" href="../spine.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 12. Traits</td></tr></table></div></body></html> + . </span></p></div></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="auto_ptr.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="memory.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="traits.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">auto_ptr </td><td width="20%" align="center"><a accesskey="h" href="../spine.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 12. Traits</td></tr></table></div></body></html> |
